Change base::LaunchProcess API slightly

Rather than passing the out param process handle via the options,
take it as a function argument.  This simplifies many callers.

BUG=88990

Review URL: http://codereview.chromium.org/7377012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92701 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/process_singleton_uitest.cc b/chrome/browser/process_singleton_uitest.cc
index d546b9f3..386d748 100644
--- a/chrome/browser/process_singleton_uitest.cc
+++ b/chrome/browser/process_singleton_uitest.cc
@@ -97,9 +97,7 @@
     // Here we don't wait for the app to be terminated because one of the
     // process will stay alive while the others will be restarted. If we would
     // wait here, we would never get a handle to the main process...
-    base::LaunchOptions options;
-    options.process_handle = &process_handle_;
-    base::LaunchProcess(command_line, options);
+    base::LaunchProcess(command_line, base::LaunchOptions(), &process_handle_);
     ASSERT_NE(base::kNullProcessHandle, process_handle_);
 
     // We can wait on the handle here, we should get stuck on one and only